3052721 has 16 divisors (see below), whose sum is σ = 3707904. Its totient is φ = 2456784.

The previous prime is 3052717. The next prime is 3052727. The reversal of 3052721 is 1272503.

3052721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 3052721 - 2² = 3052717 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3052693 and 3052702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3052727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10646 + ... + 10928.

It is an arithmetic number, because the mean of its divisors is an integer number (231744).

Almost surely, 2^3052721 is an apocalyptic number.

It is an amenable number.

3052721 is a deficient number, since it is larger than the sum of its proper divisors (655183).

3052721 is a wasteful number, since it uses less digits than its factorization.

3052721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 3052721 is about 1747.2037660216. The cubic root of 3052721 is about 145.0649095040.

It can be divided in two parts, 3052 and 721, that added together give a palindrome (3773).

The spelling of 3052721 in words is "three million, fifty-two thousand, seven hundred twenty-one".